Which of the following is a rational number? 79, 80, 81, 82​

Answers

Answer 1
I’m thinking 81 ? Maybe but it can also be 79

Related Questions

2 people can make 2 bicycles in hours.How many people are needed to make 12 bicycles in 6 hours.​

Answers

Answer:

12 people are needed to build 12 bikes in 6 hours

The tables show linear functions representing the cost per hour to rent a bicycle and the cost per hour to rent in-line skates. Bicycle per Hour In-Line Skates per Hour Which function has the greater slope and what does it represent? The in-line skate function has the greater slope, which shows that the cost per hour is greater than that of the bicycles The in-line skate function has the greater slope, which shows that the cost per hour is less than that of the bicycles. The bicycle function has the greater slope, which shows that the cost per hour is greater than that of the in-line skates. The bicycle function has the greater slope, which shows that the cost per hour is less than that of the in-line skates.

Answers

Answer:the bicycle function has the greater slope, which shows that the cost per hour is greater than that of the in-line skates

Step-by-step explanation:

The function has the greater slope and it represent : The bicycle function has the greater slope, which shows that the cost per hour is greater than that of the in-line skates

What are linear functions?

Linear functions are those whose graph is a straight line. A linear function has the following form. y = f(x) = a + bx. A linear function has one independent variable and one dependent variable. The independent variable is x and the dependent variable is y.

What is slope?

The slope of a line is a measure of its steepness. Mathematically, slope is calculated as "rise over run" (change in y divided by change in x).

According to the question

The cost per hour to rent a bicycle and the cost per hour to rent in-line skates are given .

We will conclude which function has the greater slopes

if any function have greater slope than other that implies that  it have greater change in  y  axis in comparison to other

as over here  

y axis = cost

x axis = hours

Therefore,

The bicycle function has the greater slope, which shows that the cost per hour is greater than that of the in-line skates

Hence, The bicycle function has the greater slope, which shows that the cost per hour is greater than that of the in-line skates

To know more about linear functions and slope here :

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The equation f = v + at represents the final velocity of an object, f, with an initial velocity, v, and an acceleration rate,
a, over time, t. Which is an equivalent equation solved for a?

Answers

Answer:

a.

Step-by-step explanation:

Six years after a tree was planted, its height was 7 feet. Nine years after it was planted, its height was 16
feet. Which of the following equations gives the heighty, in feet, of the tree after x years if the tree grows at
a constant rate? Check all of the boxes that apply.
y - 6 =3(x - 10)
y-16 = 3(x-9)
y = 3x - 11
y=-3x - 23

Answers

I'm not good in this but.....

x = years

9x-6x = 16-7

3x = 9

x = 3

That means the tree will grow three feet per year.

Calculate the area of the shaded region

Answers

Area of triangle = 1/2 x base x height:

Area of triangle = 1/2 x 14 x 5 = 35

Area of square = 2 x 2 = 4

Shaded area = 35-4 = 31 cm^2

help 9 - [{x - (7 + x)}

Answers

Answer:

2-2x?

Step-by-step explanation:

9 - [{x - (7 + x)}

9-(x-7-x)

9-2x-7

2-2x

Multiply. 4x2 (2x3 + x2 - 3) A. 8x6 + 4x4 + 12x2 B. 8x6 + 4x - 12x2 C. 8x5 + 4x4 - 12x2 D. 8x5 + 4x4 + 12x2​

Answers

Answer:

[tex] \boxed{ \bold{\sf{ { \boxed{ \sf{8 {x}^{5} + 4 {x}^{4} - 12 {x}^{2} }}}}}}[/tex]

Option C is the correct option.

Step-by-step explanation:

[tex] \sf{4 {x}^{2} (2 {x}^{3} + {x}^{2} - 3})[/tex]

Distribute 4x through the parentheses.

[tex] \dashrightarrow{ \sf{4 {x}^{2} \times \: 2 {x}^{3} + 4 {x}^{2} \times {x}^{2} - 4 {x}^{2} \times 3}}[/tex]

[tex] \dashrightarrow{ \sf{8 {x}^{5} + 4 {x}^{4} - 12 {x}^{2} }}[/tex]

Hope I helped!

Best regards! :D

C is the correct option

Step-by-step explanation:

How many dots would be in the next image?

Answers

In each image they add a dot going up and a dot going across, the last diagram is 4 by 5, so the next one is 5 by 6. Multiply 5 by 6 and you get 30.

wallpaper is sold in rolls that are 2 feet wide what is the minimum length you would need to purchase to cover the wall and 60 feet covers the wall

Answers

Answer:

28feet

Step-by-step explanation:

Let the wallpaper be a rectangle

Area of a rectangle = Length * Width

A = LW

Perimeter P = 2L+2W

If the wallpaper is sold in rolls that are 2 feet wide, then the width is 2 feet, to get the length, substitute W = 2 and P = 60 into the formula for calculating the perimeter of a rectangle.

60 = 2L + 2(2)

60 = 2L + 4

2L = 60-4

2L = 56

L = 56/2

L = 28

The minimum length that will be purchased to cover the wall is 28 feet

Given segment CE and point D that lies on CE, find CD if CE = 15, CD = 30 + 3x, and ED = 25 + 2x

Answers

CD+DE=CE
(30+3x)+(25+2x)=15
55+5x=15
x=-8
CD=30-24=6

A property insurance policy is issued at a total cost of $2,540 for 6 months. If the insurance company offers a one-time $50 rebate, what is the cost per month?

Answers

Answer:

$431.67

Step-by-step explanation:

Let

The one time $50 rebate be for the first month

Cost of insurance per month = x

First month cost of insurance = x-50

Total cost of insurance = $2,540

Total cost of insurance = 1st + 2nd + 3rd + 4th + 5th + 6th

2,540 = x-50 + x + x + x + x + x

2540 + 50 = 6x

2590 = 6x

Divide both sides by 6

x= 2,590 / 6

= 431.67

x= $431,67

The cost of the insurance per month = $431.67

Check:

$431.67 * 6 months

=$2,590.02

Minus one time rebate of $50

= $2,590.02 - $50

= $2,540.02

Approximately

$2,540

The moon is 250,000 miles away. How many inches is it away from earth?

Answers

Answer:

the moon is 15,840,000,000 inches away

Step-by-step explanation:

The distance of the moon from the earth in inches is 1583926.56 ×10⁴ inches.

What is the unitary method?

The unitary method is a method in which you find the value of a unit and then the value of a required number of units.

Given here, The moon is 250,000 miles away. How many inches and

we know that 1 mile =63357.0626 miles

Thus 250000 mile = 1583926.56 ×10⁴

Hence, The distance of the moon from the earth in inches is 1583926.56 ×10⁴ inches.

Learn more about the unitary method here;

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Pls help I need this ASAP

Answers

Answer:

m<2=35 M<3=55

Step-by-step explanation:

When looking at this problem the 4 and 2 angles are the same because of opposite side  and then you just subtract 35 from 90 which gives you 3

is 0.375 irrational or rational

Answers

rational is the answe
The answer is rational because it can be turned into a fraction.

how to expand a using the distributive law

Answers

Answer:

2x(3x+5)+1(3x+5)

Step-by-step explanation:

The distributive law is the law that states that multiplying a number by a group of numbers is the same as doing each multiplication separately. Eg. A(B+C) =AB+AC

In the case of two sets of parenthesis it would look like:

2x(3x+5)+1(3x+5)

Which would give us:

6x^2 +10x +3x+5

6x^2+13x+5

The general format for 2 bracket ones would be:

(A+B) (C+D) =A(C+D) +B(C+D)

where the two terms in the first bracket go outside the second bracket twice individually because each term must be multiplied by all terms in the other bracket.

Hope this helped!

Lauren has 108 pieces of candy leftover from Halloween. She would like to distribute them evenly to the 9 kids on her block. Write an equation to show how many pieces of candy each kid will receive.

Answers

Answer:

each kid gets 9 pieces

Step-by-step explanation:

Which of the following units is incommensurable with kilograms? A.pounds B.ounces C.tons D.gallons

Answers

Answer:

Gallons

Step-by-step explanation:

A gallon is a measurement of volume. The rest are all measurements, which are either SI units or measured in the US Customary system.

Which fraction is equivalent to 2/3

Answers

Answer:

2/3= 8/12

its simple had the same question in my homework

Answer:4/6, 6/9,8/12

Step-by-step explanation:You can get this by multiplying what ever number you want, as long as you do the same for the other number. Example, 2/3= 10/15, I just multiplied both sides with the same number.

evaluatethe expression (-0.3)^4. what is the value of the expression​

Answers

Answer:

(-0.3)^4 = 0.0081

Step-by-step explanation:

Can someone please help me with this problem? In the picture down below. WILL MARK BRAINLIEST!!!

Answers

Answer:d

Step-by-step explanation:

Answer: The answer would be D.

Step-by-step explanation: When you add 2 5/6 to 7/4, you get 55/12. Turn 55/12 into a mixed number, and you get 4 7/12.

2 times the difference of 8 and 1?

Answers

Answer:

16

Step-by-step explanation:

8/1=8

8x2=16

14
Step by Step:
8-1 = 7
7x2 is 14

reagan earned an 88% on her first test and a 80% on her second test. what is her average score?

Answers

Answer:84

Step-by-step explanation:88+80=168

168/2=84

Answer= 84

The average is found by adding up all your numbers and dividing by how many numbers you have.

Her average is

(88+80) =168 / 2 = 84

Point T is on line segment \overline{SU} SU . Given SU=4x+1,SU=4x+1, TU=3x,TU=3x, and ST=3x-1,ST=3x−1, determine the numerical length of \overline{SU}. SU

Answers

Answer:

The numerical length of SU =

5 units

Step-by-step explanation:

Here, we want to get the length of point SU

mathematically;

SU = ST + TU

4x + 1 = 3x -1 + 3x

4x + 1 = 6x - 1

6x-4x = 1 + 1

2x = 2

x =2/2 = 1

But SU = 4x + 1 = 4(1) + 1 = 5 units

Answer:

10

Step-by-step explanation:

DeltaMth answer 2021

Add and subtract fraction

Answers

Answer:

1. 23/20 or 1 whole and 3/20

2. 3/10

3. 4/3 or 1 whole and 1/3

4. 1/15

5. 1/2

6. 3/10

I am totally stuck on this section

Answers

Answer:

i amm also strck in this

Please view the work for this problem in the picture below.

2 buckets an 800 balls how many ball will fit in each bucket

Answers

Answer:

400 balls in each bucket

Step-by-step explanation:

800 (balls) divided by 2 (buckets)

Answer:

do 800/2

Step-by-step explanation:

Simplify (4x+5y)(2x-3y)+3xy

Answers

Answer:

2x+8y

Step-by-step explanation:

Answer: 8x^2 - 15^2 + xy

Step-by-step explanation:

expand brackets by multiplying

(4x+5y)(2x-3y)+3xy

8x^2 - 12xy + 10xy - 15y^2 + 3xy

collect like terms

8x^2 - 15y^2 -12xy + 10xy + 3xy

solve

-12xy + 10xy + 3xy

=1xy (note: when writing/typing the answer, don't add 1 in front of the xy.)

final answer: 8x^2 - 15y^2 + xy

What is the mean of the data set (3, 2, 2, 12, 6, 5, 14, 4]? O 2 O 4 O 6 O 7​

Answers

Answer: 6

Step-by-step explanation:

{3, 2, 2, 12, 6, 5, 14, 4}

To find the mean,add everything up, the divide it by how many numbers you added up.

So, do :

3 + 2 + 2 + 12 + 6 + 5 + 14 + 4 = 48

Then, because you added 8 numbers together, you would divide 8 from 48.

48 ÷ 8 = 6

So, your mean is  6

Compute the scale factor of the new scale drawing (SD2) to the first scale drawing (SD1) using the information from the given scale drawings. ​

Answers

Answer:

  a) 1/48

  b) 36/1

Step-by-step explanation:

The scale factor from 2nd to 1st is the ratio of the scale factors.

(a) (1/280)/(6/35) = (1/280)(35/6) = 35/(35·8·6) = 1/48

__

(b) (3)/(1/12) = 3·12/1 = 36/1

1.
Sandra and Cindy both invest $14,000 into savings
accounts that earn simple interest. If Sandra's account
earns 4.5% interest and Cindy's account earns 6%
interest, how much more interest will Cindy have earned
after 7 years?
Your answer

Answers

Step-by-step explanation:

6/=14000

6x140

840x7

5880

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